Jade is a thief in the Thieves' Passage. He is the only one in the game who will buy items off you for more than the itemshops do, both potions and flora and fauna.

Arbog Finger mushrooms are bought for 5 Pix.

Bloodsprout mushrooms are bought for 5 Pix.

Elixirs are bought for 20 Pix

Ethers are bought for 30 Pix.

Limits Boosts are bought for 35 Pix.

Moonflame Stalk mushrooms are bought for 7 Pix.

Potions are bought for 15 Pix.

Red Pearl butterflies are bought for 20 Pix.

Remedies are bought for 25 Pix.

Spider Cap mushrooms are bought for 5 Pix.

Suncrest butterflies are bought for 15 Pix.